2565240143 has 8 divisors (see below), whose sum is σ = 2721545568. Its totient is φ = 2409535744.

The previous prime is 2565240133. The next prime is 2565240151. The reversal of 2565240143 is 3410425652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2565240143 - 2⁶ = 2565240079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565240133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141446 + ... + 158547.

It is an arithmetic number, because the mean of its divisors is an integer number (340193196).

Almost surely, 2^2565240143 is an apocalyptic number.

2565240143 is a deficient number, since it is larger than the sum of its proper divisors (156305425).

2565240143 is a wasteful number, since it uses less digits than its factorization.

2565240143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300513.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2565240143 is about 50648.1998001903. The cubic root of 2565240143 is about 1368.9135085472.

Adding to 2565240143 its reverse (3410425652), we get a palindrome (5975665795).

The spelling of 2565240143 in words is "two billion, five hundred sixty-five million, two hundred forty thousand, one hundred forty-three".